Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
050049lightly pollutedexcellent91excellent
040047lightly pollutedexcellent91excellent
030045lightly pollutedexcellent81excellent
020038lightly pollutedexcellent71excellent
010034goodexcellent61excellent
000034goodexcellent51excellent
230031goodexcellent51excellent
220031goodexcellent51excellent
210035goodexcellent51excellent
200038lightly pollutedexcellent61excellent
190035goodexcellent51excellent
180030goodexcellent41excellent
170020goodexcellent41excellent
160020goodexcellent41excellent
150020goodexcellent41excellent
140019goodexcellent41excellent
130021goodexcellent41excellent
120025goodexcellent51excellent
110031goodexcellent71excellent
100034goodexcellent61excellent
090046lightly pollutedexcellent81excellent
080037lightly pollutedexcellent71excellent
070048lightly pollutedexcellent91excellent
060051lightly pollutedexcellent101excellent